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1 Introduction

1-20

CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)

The SNMP agent passes internal status information from the EtherNet/IP Unit to network management

software that uses an SNMP manager.

SNMP Trap

When specific conditions occur, the EtherNet/IP Unit that is set as the SNMP agent sends status

notification reports to the SNMP manager. The SNMP manager can learn about changes in status

even without periodically monitoring of the EtherNet/IP Unit. Status notification reports are sent

under the following conditions.

• When the Controller is turned ON

• When links are established

• When an SNMP agent fails to be authorized

1-4-6 SNMP Agent

Device that supports SNMP

SNMP agent

SNMP agentSNMP agent

Management

information

SNMP message

SNMP

manager

Monitoring Ethernet/IP Devices

EtherNet/IP Unit

Ethernet

CJ1W-EIP21 0C_JB-191.158.038

CJ1W-EIP21 0C_JB-191.158.072

CJ1W-EIP21 0C_JB-191.158.073

CJ1W-EIP21 0C_JB-191.158.074

CJ1W-EIP21 0C_JB-191.158.075

CJ1W-EIP21

CJ1W-EIP21 -191.168.031

CJ1W-EIP21 0C_JB

CJ1W-EIP21CJ1W-EIP21CJ1W-EIP21CJ1W-EIP21CJ1W-EIP21CJ1W-EIP21CJ1W-EIP191.108.039 191 068 038 EIP21CJ1W-EIP21 CJ21-191.168.035

IP-191.168.035

MAC=00 00 0A 38 #0 F4

[A+]=0

08/04/20 10:18:29

CJ1W-EIP

08/04/20 10:18:29

SNMP agent

Trap

SNMP manager

EtherNet/IP Unit

Controller

turned ON.

Brand	Omron
Model	CJ1W-EIP21
Category	Controller
Language	English

Omron CJ1W-EIP21 User Manual

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Omron CJ1W-EIP21 Specifications

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